Stem winding and setting watch.



G. E. HUNTER.

STEM WINDING AND SETTING WATCH.

APPLICATION FILED JULY 23, 1912.

1,096, 304 Patented May 12, 1914.

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UNITED STATES PATENT OFFICE.

GEORGE E. HUNTER, OF ELGIN, ILLINOIS, ASSIGNOR T0 ELGIN NATIONAL WATCHCOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STEM WINDING AND SETTING WATCH.

To all whom it may concern:

Be it known that I, GEORGE E. HUNTER, a citizen of the United States,residing at Elgin, in the county of Kane, State of Illinois, haveinvented certain new and useful mprovements in Stem WVinding and SettingWVatches, of which the following is a description, reference being hadto the accompanying drawing and to the figures of reference markedthereon.

My invention relates to improvements in watches, and While applicable toall pendant setting watches, has been more especially designed for usein connection with the so called locket watches, in which the bow of thecase or its equivalent is attached directly to the winding and settingstem.

The primary object of the invention is to lock the stem securely in thewinding posi tion in such a manner as to prevent any strain put upon thebow from being transferred to the winding stem, except when it isdesired to set the hands. In such event, means are provided to releasethe stem.

The invention, therefore, consists in the matters hereinafter describedand referred to in the appended claims.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a front view in section of a portion of a watch embodying myinvention; Fig. 2 is a cross section of the same; Fig. 3 is a detailplan view of the forked spring embracing the winding stem sleeve; andFig. 4: is a detail view of the locking device for the forked spring.

In these drawings, 1 represents the watch case, 2 the winding andsetting stem, which may be connected with the winding and settingmechanism in any well known manner. At its upper end the stem has ascrewthread terminal, to which the how 2 is sccured.

A loose sleeve 4 is arranged on the winding stem and is confinedlongitudinally between the collar 5 and the bow 3. Embracing loosely thereduced upper portion of the sleeve 1 is the opening 6 formed in theforks 7 of the spring 8 secured to the watch case. The sleeve 4 has anabrupt taper 8 connecting its reduced portion with the enlarged lowerportion, and when the stem is drawn out to set the watch, this taperspreads the prongs of the spring, and holds them apart.

The flange on the inner end of sleeve a Specification of Letters Patent.

Application filed July 23, 1912.

Patented May 12, 1914.

Serial No. 711,132.

prevents drawing out the spring too far. In order to prevent accidentaldrawing out of the stem by strain on the how, I have provided a lockingdevice to prevent the prongs of the spring 8 from spreading. Thisconsists of the flat spring 10, provided with two upwardly projectinglugs 11, 11, which embrace the ends of the forks or prongs 7, and. holdthem in normal position against the outward pressure of the sleeve. Asmall pin 12 is provided on the spring 10 for the purpose of bringingthe two ends of the springs 8 and 10 into alincment for locking. Thepush pin 13 extending through to the outside of the case, provides meansfor disengaging the lugs 11 from the forks 7, thus permitting the latterto spread when the stem is drawn out.

The mode of operation is as follows, the stem being shown in windingposition. It being desired to set the watch, the push pin 13 is forcedin to release the lugs 11, from the prongs 7 on the spring 8. The stemcan be then drawn out by pulling on the bow 3, when the stem can beturned to set the hands. To return to winding position, it is onlynecessary to push in on the bow. This allows the prongs of the spring 8to come together again, and they are at once locked by the lugs 11 ofthe spring 10.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. A stem-winding watch comprising a rotatable winding stem having atits outer end means for suspending the watch, said stem being adapted tobe moved longitudinally, a catch member for holding said stem fromoutward movement and yieldable laterally to permit such movement of thestem, and a manually operated locking device for holding the catch fromyielding to release the stem.

2. A stem-winding watch comprising a rotatable winding stem having atits outer end means for suspending the watch, a forked catch memberembracing the stem and adapted to be spread by the upward movement ofthe stem, and a locking device engaging the sides of the forks toprevent their spreading.

3. A stem-winding watch comprising a rotatable winding stem, having atits outer end means for suspending the watch, a sleeve mounted on saidstem having an enlarged and a reduced portion, a forked catch mem- Intestimony whereof, I a'llix my signature, ber embraclng the sleeve andadapted to be 111 the presence of two \vltnesses. spread by the enlargedportion of the sleeve "P a 1n the upward movement of the stem, and aGEORGE HUNTER vertically moving locking device to engage v' itnesses:the sides of the fork to prevent such spreuct J. A. LOGAN, ing. GEO. B.UNDERWooD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. 0.

